Artículo
Technical Note: Low-Cost Sample Holder with Flooded Gasket Prevents Crevice Corrosion in Pitting Corrosion Tests
Fecha de publicación:
10/2022
Editorial:
NACE International
Revista:
Corrosion
ISSN:
0010-9312
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This work describes an inexpensive holder for corrosion experiments, developed to avoid crevice corrosion during pitting corrosion tests of corrosion-resistant alloys. It is based on a flooded gasket, incorporated in a Stern-Makrides sample holder. Unlike the Avesta cell designed by Qvarfort, the proposed sample holder does not require a pump. The sample holder attaches to prismatic or cylindrical specimens cut from bars, plates, or any other component with a thickness greater than 10 mm. The sample holder is versatile and with no limitations on chloride concentration, solution composition, or temperature. The testing solution can be deaerated or saturated with any gas if needed. The sample holding method was validated by cyclic potentiodynamic polarization experiments on Types 304, 316 stainless steel, and C-22HS nickel-based alloy. Crevice corrosion was not evident in any of the specimens tested with the proposed method.
Palabras clave:
CREVICE CORROSION
,
ELECTROCHEMICAL CELL
,
PITTING
,
UNS N07022
,
UNS S30400
,
UNS S31600
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Hornus, Edgar Cristian; Rodríguez, Martín Alejandro; Kappes, Mariano Alberto; Technical Note: Low-Cost Sample Holder with Flooded Gasket Prevents Crevice Corrosion in Pitting Corrosion Tests; NACE International; Corrosion; 78; 10; 10-2022; 931-935
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